geyes30

Been fascinated with this thread (and others like it) for a long while. Today I finally managed to get a working sensor with no dead pixels. This is my fourth sensor (two 1000D, two 450D). First 1000D I was basically in over my head. I scraped off all the blue edges and had a completely dead sensor. Next two were better - I got working, monochrome sensors in each case but there was still inadvertent damage to the sensors, with dead pixels or lines. This last one I modified the method. Instead of polishing, I used an ultraviolet lamp (UVC) and shone it on the sensor for about 6 hours. That made the microlens and filter layers brittle enough to scrape off with a pair of sharp tweezers. I did this on an inspection microscope, which I think should be mandatory, especially if you want to work fairly close to the edge. Two images attached here. The first is a flat, and the second is a frame of my living room wall after flats and darks processing. Because I am fairly clumsy, I applied slow-setting epoxy along the four edges to protect the wires and the blue edges. Unfortunately this meant that the epoxy invariably flowed onto small bits of the sensor. That's why I have intact CFA on some parts. Nevertheless, pretty awesome! Thanks everyone!